Crucible-holding apparatus.



0.1. GOEHRINGER.

CRUCIBLE HOLDING APPARATUS.

APPLICATION FILED 1uNE22. 19:8.

1,280,712. Patented Oct. 8,1918.

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CHARLES J. eoiiirrarivenn, :GINQINNATJI, tam;

CBUCIIBLE-I-IOLDING PPA ATUS.

To all whom it may concern:

Be it known that I? RINGER, a citizen of the United States, residingatCincinnati, in the county of Hamilton and State of Ohio, have inventedcertain: new and useful Improvements in Crucible-Holding Apparatus, 'ofwhich the following is a specification.

My invention relates to improvements in crucible holding apparatus. ()neof its objects is to provide a simple reliable and practical crucibleholder. Another object is to provide for the automatic grip and automatic release of the hold upon the crucible. Another object is toprovide for holding crucibles of different dimensions. Another object isto provide against accidental release of the crucible during the pouringoperation. My invention also comprises certain details of form,combination, and arrangement, all of which will be fully set forth inthe description of the accompanying drawings, in which:

Figures 1 and 2 are plan views of the respective members of a crucibleholder embodying my invention.

Fig. 3 is a sectional diagram illustrating the position of the crucibleand holder during the pouring operation.

Fi 4 is a sectional dia 'ram illustratin 1 the position of the crucibleand holder when the crucible is about to be lifted, or has just beenreturned to the furnace plate or floor.

Fig. 5 is a sectional diagram illustrating the position of the crucibleand holder after the crucible has been lifted from the furnace plate orfloor, or is about to be returned thereto.

The accompanying drawings represent the preferred embodiment of myinvention in which 5 represents a metal ring having handles 6 and 7 atopposite sides and an outwardly projecting bracket 8. The bracket 8 hasan eye 9 through which the shank 10 of a hook 11 passes, and has a pawl12, loosely pivoted to the ears of the bracket 8 by means of a bolt'll.The shank of the hook 11 is preferably longer than the crucible 15 to beheld thereby and is provided with a series of rack teeth 16 to beengaged by the pawl 12.

In practice the ring 5 is placed upon the furnace plate 17 or other flatsurface adjacent to the furnace, the highly heated crucible with itscharge of molten metal is then Specification of Letters Patent.

Application filed June 22. 1918. Serial No. 241.448.

CHARLES J. Gonnratenteu QcteS lQiS,

lifted from the furnace with crucible-ton gsl i and seated within thering 5 upon theifurn nace plate on floor, and the shank-of hook illinserted through the ,eye,9. Two operators then'grasp the handles 6and-7 and lift the ring 5 first to the position illustrated in Figix Awhere the ring engages the outer wall of the crucible, and thento thepositioirFig.

5,.where the hook 11 engages the upper edge or rim of the crucible. Thecrucible is then carried to the position where the molten metal is to bepoured from the crucible into molds, where the operator holding theforked handle 7 is ableto tip or incline the ring 5 and crucible 15 tosubstantially the position indicated in Fig. 3. This tilting operationcauses the pawl l2, actuated by gravity to engage one of the teeth ofrack 16 and firmly lock the shank 10 and hook 11 to the bracket 8 solong as the crucible isin a tilted or inclined position, and preventsthe crucible from disengaging itself fro the ring 5.

As soon as the metal has been poured the crucible and holder arereturned to their original position shown in Fig. 5 above the furnaceplate or floor, in which position the pawl 12 is disengaged by gravityfrom the rack 16, and the holder is then lowered to the position Fig. 5in which the lower end of the shank 10 by engaging the plate 17disengages the hook 11 from the crucible rim, and finally to a positionwhere the ring 5 rests upon the plate 17, whereupon the crucible isgrasped by tongs and replaced in the furnace. Pouring ladles may also beemployed in place of crucibles 15.

members become highlyheated and diflicult to handle, and it is thereforeimportant that the holder members act reliablyefiiciently andautomatically. 7 The combined action of the hook and ring enables agreater variety or range of crucibles to be held with a given ring thanwould be otherwise practicable.

The apparatus herein illustrated and described is capable ofconsiderable modification without departing from the principle of myinvention.

What I claim is: o, 'o 1. Crucible holding apparatus comprislng a memberto support the weight of a crucible having a guiding recess and agravity actuated pawl, and a holding member to engage the rim of acrucible having a shank guided by said recess and a rack to be engagedby said pawl.-

2. Crucible holding apparatus comprising a member to support the weightof a crucible provided with handles to guide the crucible inpouring, aguiding recess and a gravity actuated pawl carried by said holdingmember and a member to engage the rim of the crucible having a shanklonger than the crucible guided bysaid recess and provided with a rackto be engaged by said pawl.

3. Crucible holding apparatus comprising an annular member to supportthe weight of a crucible provided with handles to guide the crucible inpouring, a guiding recess and pawl carried by said annular supportingmember, and a member to engage the rim of the orucible'having a shankprojecting below the bottom of the crucible and provided with a rack tobe engaged by saidpawl.

In testimony whereof I have aflixed my signature.

CHARLES J. GOEHRINGER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

' Washington, I). G.

